Turkish President Tayyip Erdogan said on Wednesday that Europeans across the world would not be able to walk safely on the streets if they kept up their current attitude.

Turkey has been embroiled in a row with Germany and the Netherlands over the barring of campaign appearances by Turkish officials seeking to drum up support for an April referendum on boosting Erdogan's powers.

"If Europe continues this way, no European in any part of the world can walk safely on the streets. We, as Turkey, call on Europe to respect human rights and democracy," Erdogan said at event for local journalists in Ankara.